2014 7D2 was released at a higher than US$1,499 price point.
Coupled with the RF800/11, RF600/11 or RF100-500L lens and it would be a very light and cheap wildlife setup.
Just do not skimp out on the
SD cards as the cheaper/slower cards will slow down the very high continuous shooting fps.
Pack in 2x more extra batteries you typical would use as RF bodies uses more power than EF bodies.